Ventilation and Pressurisation Systems- A Basic Know-how of Their working

Pressurization systems were installed to pressurize the enclosure and provide a slightly higher pressure than the adjacent area. This is done to prevent air/smoke/gases from entering the closed room. In such an application, all doors and windows are normally closed. When a door is opened to enter workers or materials, indoor air comes out due to high internal pressure and outside air does not enter the closed room.

The system consists of:

1) The filtered air supply in a closed room.
2) Pressure relief system to prevent overpressure in the department, then provided.
3) The system is valid for electrical rooms, medicine blocks, air-conditioned areas, CNC workshops, machine assembly areas, elevator machine rooms, compressor rooms, stairwells, community rings.

According to VentechSystems, their pressurization systems offer the following advantages:

1) Protection of escape routes
2) Protection of extinguishing shafts
3) Compliance with all standards.
4) Ideal for multi-story use.

A VentechSystem pressurization system consists of three main components: supply air, pressure relief, and air outlet. The combination of these elements creates a positive pressure difference that prevents everything to enter the chamber.

VentechSystems Design methodology for Pressurization Systems:

1) Evaluation of the usage and structure of the building, the area to be pressurized and the required system class.
2) Assess leak paths.
3) Calculate the required volumetric flows.
4) Calculate the area of ​​the pressure relief rods.
5) Calculate the ventilation area.

Ventilation Systems Working:

Ventilation systems provide adequate air circulation to ensure the comfort of people in the work area. The system can be of two types. The first is a cool and dry ventilation system located outside the filtered air pump in the area. In most cases, such systems are installed to put pressure on the area. It can be with fan cooling. Here the outside air is cooled before being released into the air. Cooling can be done with a conventional spray system, an evaporative cooling system, or Celdec cooling pads. Suitable extraction is required for both of the above applications. Exhaust gases can, of course, come from doors and windows or mechanically from ducts and fans. Sometimes ceiling fans are also installed to remove heat from the room.

What is mechanical ventilation defined by VentechSystems?
Mechanical fans direct mechanical ventilation. Fans can be connected directly to windows, walls or air ducts to feed or ventilate the room. The type of mechanical ventilation depends on the climate. In hot and humid climates, leakage may need to be minimized or prevented to reduce condensation. In these cases, Ventech Systems uses the mechanical positive pressure ventilation system. Conversely, leakage should be prevented in cold climates and vacuum ventilation should be used to reduce interstitial condensation. For a room containing locally produced contaminants, such as a B. bathroom, toilet or kitchen, the vacuum system is often used.

Everything about Axial Flow Fans - Description, Function, And Use!

An Axial Flow Fans moves air parallel to the axis of rotation of the blades. For comparison: the radial or radial fan moves the air perpendicular to the axis of rotation. Axial fans are more suitable for low resistance and high flow applications, radial fans are more suitable for high-pressure resistance and low flow applications. As a rule, the fan types described in this manual can handle "resistors" up to 1-inch water. Axial Flow Fans can have many different operating features depending on various factors

The basic principle of the axial fan provided by Axial Flow fans Manufacturer Noida is that the airflow direction is parallel to the rotor shaft. The blades of the fans press the air to the shaft linearly. They are known to produce a high flow rate and achieve a larger air volume. During operation, the air movements they produce are at a lower pressure and require less energy to operate.

How do Axial Flow Fans work

Axial Flow Fans are best suited for low air resistance and high flow conditions. Depending on the purpose of use, there are several axial fans in the industry. The blades can be bent forward, straight or back. During operation, the efficiency is higher if the blades are bent backward by curved blades. However, the front-facing blades have proven to be more self-cleaning than the rear-facing blades.

Features of Axial Flow Fans
1) The main distinguishing feature of the axial fan is 2 to 20 blades axial impeller, depending on the design and performance requirements. It is connected to a powerful drive motor and placed in a housing designed for parallel airflow from the fan.

2) These fans are extremely energy efficient and can produce more air movement with much less energy. This allows users to save on high costs. Power consumption can be reduced by up to 40% compared to other fan types.

Selection criteria for fans by Axial Flow fans Manufacturer Noida:

According to Axial Flow fans Manufacturer Noida various technical criteria are used when choosing fans for your building. This;

1) Working points should never be close to the "stopping point". This is a tolerance created by leaving a 2-degree safety angle so that the drive motor is not overloaded.

2) It should be ensured that the engine power is sufficient for air movements, environmental effects and power losses.

3) You must ensure that performance per blade never exceeds the mechanical limit. Otherwise, it is important to choose a fan with additional blades.

4) Also, the determined noise level should be compared with a noise limit specification. It is usually given as a sound pressure level at a certain distance from the tower.

5) Considerations About Vibration Frequency

Factors affecting the performance of Axial Flow Fans

Several design factors affect the performance of Axial Flow Fans.
1) Density or weight of air per unit volume

2) several knives on the device; This is the ratio of the sum of blade widths to the perimeter of the fan.


3) The shape of the blade. Straight, curved, forward or reverse orientation. This blade shape affects the airflow over the fan surface. The shape rotates the air and affects the speed and air profile.

Benefits that come with an evaporative cooler

When it comes to climate control, the one name that comes to the mind is the evaporative cooler. It is one of the oldest ways of climate control that has been in use for several years. In comparison with the traditional air coolers or air conditioners, you will get a number of benefits such as less pollution. There is a great demand for Evaporative Air Cooler in India that too because of its attributes and benefits. So, let’s check out more about the advantages of this evaporative cooler:

·    One of the main benefits of using this cooler is that it ensures fresh and clean air. This evaporative cooler has a high volumetric airflow rate that helps in removing all the pathogens. With fresh air, you will get rid of respiratory problems. Therefore for a healthy life, it is important to install an evaporative cooler at home.

·         This equipment is eco-friendly in nature. The refrigerated cooling can cause dry air which harmful to the environment. An evaporative cooler is completely based on the natural process of cooling that helps in keeping the environment clean and fresh. There will be no damage to the surrounding and environment because of this equipment.

·         Another benefit is that you don’t have to pay a heavy amount on its installation. Because of its inexpensive and simple installation, this evaporating cooler is widely demanded in the market. In fact, other traditional air conditioners need a huge amount of installation.

·         Low emission of carbon dioxide is also an added advantage of this cooler. As there is low emission of the harmful gas, there will no negative effect on the environment and health of the people. In other home cooling systems, you can see the range of carbon dioxide emission that causes severe health issues. Because of this reason, evaporating coolers have gained a wide customer base.

·         People who are in a dry climate can choose this cooling system. It has the ability to add moisture to the air. If there will be no moisture in the air then it can be difficult to breathe.

Are you thinking of buying the best evaporative cooler in your home? If yes then your search ends here as Ventech Systems is available to provide you a high performing range of evaporating coolers. They focus on low carbon emission and healthy surroundings. So, contact them now.